| CO2激光作用下直流TIG电弧特性分析 |
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| 引用本文： | 张寰臻,吴世凯,肖荣诗. CO2激光作用下直流TIG电弧特性分析[J]. 焊接学报, 2009, 30(3): 97-100 |
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| 作者姓名： | 张寰臻 吴世凯 肖荣诗 |
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| 作者单位： | 北京工业大学,激光工程研究院,北京,100124 |
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| 基金项目： | 北京市教委科技发展计划重点项目，教育部新世纪优秀人才支持计划，北京工业大学111人才工程基金 |
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| 摘 要： | 文中借助高速摄像和激光功率计等先进手段,研究了CO2激光与直流,TIG电弧垂直相互作用时激光对电弧特性的影响.激光功率越高,电弧静特性曲线下移幅度越大,电弧电功率越低,而电弧总功率越高.电弧电流越小、激光作用位置越靠近阴极,电弧电压下降幅度越大.激光作用引起电弧体积膨胀主要发生在激光作用位置到阳极之间的区域.结果表明,激光作用电弧后,电弧静特性曲线下移,体积膨胀,电弧电功率下降,而总功率增加.
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| 关 键 词： | 钨极惰性气体保护焊 CO2激光 电弧静特性 电弧形态 电弧功率 |
| 收稿时间： | 2008-01-21 |
Characteristics of DC TIG arc with the action of a vertically incident CO2 laser beam |
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| ZHANG Huanzhen,WU Shikai and XIAO Rongshi. Characteristics of DC TIG arc with the action of a vertically incident CO2 laser beam[J]. Transactions of The China Welding Institution, 2009, 30(3): 97-100 |
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| Authors: | ZHANG Huanzhen WU Shikai XIAO Rongshi |
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| Affiliation: | Institute of Laser Engineering;Beijing University of Technology;Beijing 100022;China |
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| Abstract: | Laser-arc hybrid welding is one of the advanced joining techniques.By using instruments such as a high-speed camera and a laser power meter,the effects of a vertically incident CO2 laser beam on characteristics of a DC tungsten inter-gas arc are investigated.Results demonstrate that the laser-arc interaction causes the curve of arc static characteristic to shift downwards,the arc column to expand,the electric power to decease and the total arc power increase.With the increase of the laser power,the downward... |
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| Keywords: | tungsten inter-gas CO2 laser static characteristic of arc arc configuration arc power |
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